lastly

at last, at length, eventually, finally, in the end, lastly

这些词或词组均含有“最后，终于”之意。
at last: 多指经主观努力，克服各种困难后才终于达到目的。
at length: 强调经历一段长时间后终于完成，侧重在时间部分。
eventually: 侧重于动作或行为的结果。
finally: 常与at last换用，都可用于对往事的描述，但finally不带感情色彩，指一系列事情的最后结局。
in the end: 与at last同义，但in the end不仅可指“过去”还可表示对“未来”的预计。
lastly: 指连续顺序的最后，通常用在列举事情的场合。

副词 lastly:

1. the item at the end
   同义词：last, in conclusion, finally

1. Lastly, to conclude this part; as we said in the beginning, that the act of envy had somewhat in it of witchcraft, so there is no other cure of envy, but the cure of witchcraft; and that is, to remove the lot(as they call it) and to lay it upon another.
   最后让笔者赘言几句来结束这个部分。如本文开篇所言，嫉妒行为有几分巫术的性质，因此治嫉妒的最好方法就是治巫术的方法，也就是移开世人所谓的“符咒”, 使之镇在别人头上。
2. Lastly, we're going to visit Athens, and fly home from there.
   最後我们将访问雅典，然後从那儿乘飞机回国。